Abstract:Existing problems in the process of identifying gravity anomalies include cumbersomeness and complication of calculation, along with lack of uniformity in parameters and coordinate system.We develop a cross platform, cloud computing software system (OnGra) of the gravity anomaly field in order to resolve these issues. In accordance with the norms of the regional gravity survey and large scale scale gravity exploration specification, we design, reconstruct and integrate the existing gravity anomaly field processing algorithm with an adaptive extraction algorithm of regional digital terrain model. The software system can batch and automaticallycalculatethe air anomaly, the Bouguer gravity anomaly and the isostatic gravity anomaly from the field observation of gravity/GNSS. It can also calculate these anomalies based on satellite gravity field models in the specific region.